US2711085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pumping volatile liquids
Assignee: Air Products Inc
•
Filing: 1950-06-15
•
Granted: 1955-06-21
•
Expires: 1970-06-15
Abstract
No abstract record available.
Inventors
- 👤 Carl R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:30
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04151; F25J3/04187; F25J3/0423; F25J3/04006; F25J3/04078; F25J3/04084; F25J3/0409; F25J3/04406; F25J3/04412; F25J2200/00; F25J2200/50; F25J2200/52; F25J2230/00; F25J2230/42; F25J2230/50; F25J2240/00; F25J2240/60; F25J2245/00; F25J2245/42; F25J2245/50; F25J2270/00; F25J2270/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |